added: ".pvr" as Virtual extension for pvr streams
fixed: IsLiveTV return also on recordings true (temporary)
changed: Use cPVRRecordingInfoTag instead of a number to open a stream in PVRManager
added: PVR Client can return a Path for a Recording
added: Directory handling functions for "pvr://recordings"
added: Automaticly add a menu point "TV Recordings" to sources list and on Video Window
fixed: Ticket #7871, info in TV > Timer list is not refreshed after a timer change
changed: disabled server messages for timer change until streamdev have support for it in CVS